CN108643988A - A kind of variable purifying muffler - Google Patents
A kind of variable purifying muffler Download PDFInfo
- Publication number
- CN108643988A CN108643988A CN201810248948.7A CN201810248948A CN108643988A CN 108643988 A CN108643988 A CN 108643988A CN 201810248948 A CN201810248948 A CN 201810248948A CN 108643988 A CN108643988 A CN 108643988A
- Authority
- CN
- China
- Prior art keywords
- insertion tube
- babinet
- slide cartridge
- fixed
- stepper motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1827—Sealings specially adapted for exhaust systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
Abstract
The purpose of the present invention is to provide a kind of variable purifying mufflers, including babinet, slide cartridge, first insertion tube, second insertion tube, catalyst is fixed in babinet, the front of babinet is installed by the first insertion tube, the second insertion tube is fixed at the rear of babinet, the head of slide cartridge is mounted on outside discharge duct and is sealed by the second sealing ring and discharge duct, the tail portion of slide cartridge is stretched into the first insertion tube and babinet and is inserted into the seal of tube by the first sealing ring and first, change the circulation area of trepanning on the first insertion tube by the rotary motion of the second step motor control slide cartridge, pass through insertion tube total length in the translational motion control cabinet body of the first step motor control slide cartridge, to meet the acoustic attenuation performance requirement of system.The present invention is variable by the performance of the insertion sleeve structure realization purifying muffler in exhaust system.There is larger flexibility for the selection of sleeve, be applicable to different diesel engines, have a wide range of application.
Description
Technical field
The present invention relates to a kind of silencers, specifically diesel engine exhaust muffler.
Background technology
Diesel engine purification silencing technology refers to that will handle the SCR system of nitrogen oxides and processing exhaust in diesel exhaust gas
The muffler system of noise is combined together, and achievees the purpose that while handling nox in exhaust and exhaust noise.Diesel oil
For machine purification silencing device there are two crucial component part, one is catalyst member to being vented purification of nitrogen oxides, another
A is the insertion tube structure for eliminating exhaust noise (comprising the trepanning on insertion tube).The use of purifying muffler device can be reduced
The volume of entire exhaust-gas treatment system, and reduce the pressure loss of whole system, meanwhile, catalyst knot in purifying muffler device
The arrangement of structure also functions to certain promotion to the elimination of the high-frequency noise in exhaust.In actual diesel engine operational process,
Noise characteristic in exhaust is changed with diesel engine operating condition and is changed.And influence the factor of purification silencing device acoustic attenuation performance not
It is only dependent upon insertion tube and is inserted into the length of babinet, and also depend on the size of the area of section of trepanning on insertion tube.
Invention content
It can the purpose of the present invention is to provide one kind of nitrogen oxides and exhaust noise in diesel exhaust gas is handled simultaneously
Become purifying muffler.
The object of the present invention is achieved like this：
A kind of variable purifying muffler of the present invention, it is characterized in that：It is inserted into including babinet, slide cartridge, the first insertion tube, second
It manages, catalyst is fixed in babinet, the first insertion tube is installed in the front of babinet, and the second insertion tube, slide cartridge are fixed in the rear of babinet
Head be mounted on outside discharge duct and sealed by the second sealing ring and discharge duct, the first insertion is stretched into the tail portion of slide cartridge
In pipe and babinet and by the first sealing ring and the first insertion seal of tube, second support is fixed on discharge duct, in second support
First stepper motor is installed, the second driving groove is arranged in the external of slide cartridge head, and the first stepper motor is engaged with the second driving groove, the
One insertion tube, the second insertion tube are provided with hole on slide cartridge, and the position in hole is located in babinet on the first insertion tube, the hole on slide cartridge
The position in babinet and the first insertion tube is stretched into positioned at it, the first insertion tube is located at the length in babinet in the first stepper motor
Control is lower to be changed.
A kind of variable purifying muffler of the present invention, it is characterized in that：It is inserted into including babinet, slide cartridge, the first insertion tube, second
It manages, catalyst is fixed in babinet, the first insertion tube is installed in the front of babinet, and the second insertion tube, slide cartridge are fixed in the rear of babinet
Head be mounted on outside discharge duct and sealed by the second sealing ring and discharge duct, the first insertion is stretched into the tail portion of slide cartridge
It is inserted into the seal of tube in pipe and babinet and by the first sealing ring and first, first support, first support are fixed on the first insertion tube
Upper installation transmission gear and the second stepper motor, the external of slide cartridge tail portion are arranged the first driving groove, and transmission gear is respectively with second
Stepper motor and the engagement of the first driving groove, the first insertion tube, the second insertion tube are provided with hole on slide cartridge, hole on the first insertion tube
Position be located in babinet, the hole on slide cartridge is located at it and stretches into the position in babinet and the first insertion tube, hole on the first insertion tube
Circulation area change under the control of the second stepper motor.
A kind of variable purifying muffler of the present invention, it is characterized in that：It is inserted into including babinet, slide cartridge, the first insertion tube, second
It manages, catalyst is fixed in babinet, the first insertion tube is installed in the front of babinet, and the second insertion tube, slide cartridge are fixed in the rear of babinet
Head be mounted on outside discharge duct and sealed by the second sealing ring and discharge duct, the first insertion is stretched into the tail portion of slide cartridge
In pipe and babinet and by the first sealing ring and the first insertion seal of tube, second support is fixed on discharge duct, in second support
First stepper motor is installed, the second driving groove is arranged in the external of slide cartridge head, and the first stepper motor is engaged with the second driving groove, the
First support is fixed on one insertion tube, and transmission gear is installed in first support and the second stepper motor, the outside of slide cartridge tail portion are set
The first driving groove is set, transmission gear is engaged with the second stepper motor and the first driving groove respectively, and the first insertion tube, second are inserted into
Pipe is provided with hole on slide cartridge, and the position in hole is located in babinet on the first insertion tube, and the hole on slide cartridge is located at it and stretches into babinet and the
Position in one insertion tube, the length that the first insertion tube is located in babinet change under the control of the first stepper motor, and first inserts
The circulation area for entering Guan Shangkong changes under the control of the second stepper motor.
The present invention can also include：
First sealing ring is fixed on the first insertion tube, and the second sealing ring is fixed on slide cartridge.
Advantage of the invention is that：
1, realized by the rotation and translation motion of control sleeve the variable of the insertion length of tube in purifying muffler and
Variable, the variable selectivity for having range larger of trepanning area of section on insertion tube I.
2, the performance by the insertion sleeve structure realization purifying muffler in exhaust system is variable.Selection for sleeve
With larger flexibility.
3, the changeable more compared to realization, whole system structure composition are relatively simple.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of slide cartridge of the present invention；
Fig. 3 is the sectional view of slide cartridge of the present invention；
Fig. 4 is slide cartridge and location diagram of the insertion tube I in babinet；
Fig. 5 is the implementation principle figure of the present invention；
Fig. 6 is the outside drawing of the present invention.
Specific implementation mode
It illustrates below in conjunction with the accompanying drawings and the present invention is described in more detail：
In conjunction with Fig. 1-6, embodiment 1
The present invention includes：Discharge duct 1, holder II 15 is fixed on the discharge duct 1, and upper portion support II 15 is fixed
Stepper motor I 2, II 15 pairs of discharge ducts 1 of lower part holder are fixed；It is connected to after the discharge duct 1 translatable, rotation
Slide cartridge 10；The slide cartridge 10 is being sealed at the port of discharge duct 1 using sealing ring II 14, and sealing ring II 14 is solid
It is scheduled on slide cartridge 10 and (is moved with slide cartridge 10)；It is respectively equipped with and transmission gear 4 on the external disc of two of the slide cartridge 10
The driving groove I (rotary motion for realizing slide cartridge) of engagement and the driving groove II 13 engaged with stepper motor I 2 (realize slide cartridge
Translational motion)；4 side of the transmission gear is engaged with driving groove I 12, and the other side is engaged with stepper motor II 15, and driving cog
Wheel 4 is fixed on by holder I 5 on insertion tube I 6 with stepper motor II 15；The insertion tube I 6 is fixed on babinet 7, insertion tube I
It is sealed by sealing ring I 11 between 6 and slide cartridge 10, and sealing ring I 11 is fixed on insertion tube I 6；Cloth in the babinet 7
It is equipped with catalyst 8, insertion tube II 9 is fixed in the other side of babinet 7.
Embodiment 2
Do not include stepper motor I 2 and fixing bracket I 5 in the variable purifying muffler, only passes through stepper motor II 3
Slide cartridge rotary motion is controlled, other structures are same as Example 1.
Embodiment 3
Do not include stepper motor II 3 and transmission gear structure in the variable purifying muffler, only passes through stepper motor I
Insertion tube total length in the translational motion control cabinet body of 2 control slide cartridges, other structures are same as Example 1.
The present invention is handled exhaust noise in diesel engine vent gas and nitrogen oxides using can be changed purifying muffler.When
When diesel engine operating condition changes, noise frequency changes therewith in exhaust.The row to have changed for processing discharge frequency
Gas noise, first, by the movement of motion parts 1 in the operation control figure 5 of stepper motor I, to which the left and right for changing slide cartridge is flat
Shifting movement, the total length of insertion tube in final regulating box.Then, pass through movement portion in the operation control figure 5 of stepper motor II
The movement for dividing 2, to change the rotary motion of slide cartridge, the final circulation area for adjusting aperture on insertion tube I.Reach system elimination
The purpose of specific frequency noise.Air-flow subsequently enters catalyst, and Chemoselective reduction occurs on a catalyst, eliminates diesel engine
Nitrogen oxides in exhaust.
Claims (4)
1. a kind of variable purifying muffler, it is characterized in that：Including babinet, slide cartridge, the first insertion tube, the second insertion tube, in babinet
It is fixed with catalyst, the first insertion tube is installed in the front of babinet, and the second insertion tube, the head installation of slide cartridge are fixed in the rear of babinet
It is sealed outside discharge duct and by the second sealing ring and discharge duct, the tail portion of slide cartridge is stretched into the first insertion tube and babinet
And the seal of tube is inserted by the first sealing ring and first, second support is fixed on discharge duct, the first step is installed in second support
The second driving groove is arranged in stepper motor, the external of slide cartridge head, and the first stepper motor is engaged with the second driving groove, the first insertion tube,
It is provided with hole on second insertion tube, slide cartridge, the position in hole is located in babinet on the first insertion tube, and the hole on slide cartridge is stretched into positioned at it
Position in babinet and the first insertion tube, the length that the first insertion tube is located in babinet change under the control of the first stepper motor
Become.
2. a kind of variable purifying muffler, it is characterized in that：Including babinet, slide cartridge, the first insertion tube, the second insertion tube, in babinet
It is fixed with catalyst, the first insertion tube is installed in the front of babinet, and the second insertion tube, the head installation of slide cartridge are fixed in the rear of babinet
It is sealed outside discharge duct and by the second sealing ring and discharge duct, the tail portion of slide cartridge is stretched into the first insertion tube and babinet
And the seal of tube is inserted by the first sealing ring and first, first support is fixed on the first insertion tube, and transmission is installed in first support
Gear and the second stepper motor, the external of slide cartridge tail portion are arranged the first driving groove, transmission gear respectively with the second stepper motor and
First driving groove engages, and the first insertion tube, the second insertion tube are provided with hole on slide cartridge, and the position in hole is located on the first insertion tube
In babinet, the hole on slide cartridge is located at it and stretches into the position in babinet and the first insertion tube, the circulation area in hole on the first insertion tube
Change under the control of the second stepper motor.
3. a kind of variable purifying muffler, it is characterized in that：Including babinet, slide cartridge, the first insertion tube, the second insertion tube, in babinet
It is fixed with catalyst, the first insertion tube is installed in the front of babinet, and the second insertion tube, the head installation of slide cartridge are fixed in the rear of babinet
It is sealed outside discharge duct and by the second sealing ring and discharge duct, the tail portion of slide cartridge is stretched into the first insertion tube and babinet
And the seal of tube is inserted by the first sealing ring and first, second support is fixed on discharge duct, the first step is installed in second support
The second driving groove is arranged in stepper motor, the external of slide cartridge head, and the first stepper motor is engaged with the second driving groove, on the first insertion tube
First support is fixed, transmission gear and the second stepper motor, the first transmission of external setting of slide cartridge tail portion are installed in first support
Slot, transmission gear are engaged with the second stepper motor and the first driving groove respectively, the first insertion tube, the second insertion tube, on slide cartridge
It is provided with hole, the position in hole is located in babinet on the first insertion tube, and the hole on slide cartridge is located at it and stretches into babinet and the first insertion tube
Position, the length that the first insertion tube is located in babinet changes under the control of the first stepper motor, hole on the first insertion tube
Circulation area changes under the control of the second stepper motor.
4. according to a kind of any variable purifying mufflers of claim 1-4, it is characterized in that：First sealing ring is fixed on
On one insertion tube, the second sealing ring is fixed on slide cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248948.7A CN108643988B (en) | 2018-03-25 | 2018-03-25 | Variable purification silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810248948.7A CN108643988B (en) | 2018-03-25 | 2018-03-25 | Variable purification silencer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108643988A true CN108643988A (en) | 2018-10-12 |
| CN108643988B CN108643988B (en) | 2020-12-04 |
Family
ID=63744458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810248948.7A Active CN108643988B (en) | 2018-03-25 | 2018-03-25 | Variable purification silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108643988B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200053953A (en) * | 2018-11-09 | 2020-05-19 | 현대자동차주식회사 | Variable silencer for a vehicle |
| CN111577428A (en) * | 2020-04-17 | 2020-08-25 | 中国第一汽车股份有限公司 | Exhaust device and control method thereof |
| CN112628516A (en) * | 2019-10-09 | 2021-04-09 | 东台市东方船舶装配有限公司 | Frequency adjustable water pipeline silencer |
| CN112648463A (en) * | 2019-10-09 | 2021-04-13 | 东台市东方船舶装配有限公司 | Frequency-adjustable resonance type water pipeline silencer |
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| US20030145585A1 (en) * | 2002-02-06 | 2003-08-07 | Uhler Gregory Allen | Exhaust processor with variable tuning system and method of operating such exhaust processor |
| WO2007016767A1 (en) * | 2005-08-05 | 2007-02-15 | Rowe Grant M | Variable sound muffler system |
| CN103486394A (en) * | 2013-09-30 | 2014-01-01 | 同济大学 | Variable-frequency microperforated pipe silencer with variable perforation section lengths |
| CN103899384A (en) * | 2014-03-28 | 2014-07-02 | 长城汽车股份有限公司 | Automotive muffler |
| CN106640277A (en) * | 2015-11-02 | 2017-05-10 | 北汽福田汽车股份有限公司 | Silencer assembly, and air inlet system, exhaust system and vehicle with same |
| CN107178403A (en) * | 2017-07-12 | 2017-09-19 | 安徽凯密克企业管理咨询有限公司 | A kind of automobile exhaust pipe purifying muffler |
-
2018
- 2018-03-25 CN CN201810248948.7A patent/CN108643988B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030145585A1 (en) * | 2002-02-06 | 2003-08-07 | Uhler Gregory Allen | Exhaust processor with variable tuning system and method of operating such exhaust processor |
| WO2007016767A1 (en) * | 2005-08-05 | 2007-02-15 | Rowe Grant M | Variable sound muffler system |
| CN103486394A (en) * | 2013-09-30 | 2014-01-01 | 同济大学 | Variable-frequency microperforated pipe silencer with variable perforation section lengths |
| CN103899384A (en) * | 2014-03-28 | 2014-07-02 | 长城汽车股份有限公司 | Automotive muffler |
| CN106640277A (en) * | 2015-11-02 | 2017-05-10 | 北汽福田汽车股份有限公司 | Silencer assembly, and air inlet system, exhaust system and vehicle with same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200053953A (en) * | 2018-11-09 | 2020-05-19 | 현대자동차주식회사 | Variable silencer for a vehicle |
| KR102610738B1 (en) * | 2018-11-09 | 2023-12-07 | 현대자동차주식회사 | Variable silencer for a vehicle |
| CN112628516A (en) * | 2019-10-09 | 2021-04-09 | 东台市东方船舶装配有限公司 | Frequency adjustable water pipeline silencer |
| CN112648463A (en) * | 2019-10-09 | 2021-04-13 | 东台市东方船舶装配有限公司 | Frequency-adjustable resonance type water pipeline silencer |
| CN111577428A (en) * | 2020-04-17 | 2020-08-25 | 中国第一汽车股份有限公司 | Exhaust device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108643988B (en) | 2020-12-04 |
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